Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Beyond the annotations (which already declare idempotentHint=true and destructiveHint=false), the description discloses the optimistic-concurrency requirement via expected_revision, the delivery consequence ('cancels future eligible sends... preserving prior outcomes'), the authorization scope, and the retry receipt behavior. All of this is consistent with the annotations rather than contradicting them.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Dense but front-loaded: the core action and mode switches come first, followed by side effects, authorization, and idempotency. Every sentence carries information, though the semicolon-chained clauses make it slightly harder to scan than a cleaner sentence-per-idea layout.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a mutation tool with no output schema and zero schema-description coverage, the definition covers concurrency, side effects, permissions, and retry semantics well. The only meaningful gap is the exact shape of the returned receipt, which an agent must discover empirically.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must carry the full burden, and it largely does: expected_revision is framed as the current revision for conflict detection, archived gets explicit true/false semantics, request_id gets the retry-receipt meaning, and rule_id is bounded to owned rules. Format details (UUIDs, integer bounds) are still left to the schema, but the semantic meaning of each parameter is supplied.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific verb and resource ('Pause an owned notification rule') and immediately clarifies the archived flag's dual behavior (archive vs. restore-paused), which distinguishes it from a pure archive or enable operation. It does not explicitly name the inverse sibling (enable_attention_notification_rule) or list_/preview_ variants, so sibling routing is inferred rather than stated.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

It gives clear conditions for the three modes: pause (default), archive with archived=true, and restore-paused with archived=false, plus the permission gate (notifications:manage) and the note that no human approval is needed. It stops short of explicitly pointing to enable_attention_notification_rule for the opposite direction or preview_attention_notification_rule for dry-run checks.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.